93 file formats explained
What each file format is, where it opens and what it is good for. Open any format for a full guide and every conversion available for it.
Archive formats (6)
ZIP1989
ZIP Archive
The most common archive format, bundling and compressing many files into one.
7Z1999
7-Zip Archive
A high-compression archive format from 7-Zip with strong encryption options.
TAR.GZ1992
Gzip-compressed TAR Archive
A TAR archive compressed with gzip, the default package format on Linux.
TAR1979
Tape Archive
An archive format that bundles files together without compressing them.
TAR.BZ21996
Bzip2-compressed TAR Archive
A TAR archive compressed with bzip2, which packs tighter than gzip but works more slowly.
TAR.XZ2009
XZ-compressed TAR Archive
A TAR archive compressed with XZ, which gives some of the smallest files of any common format.
Audio formats (12)
MP31993
MPEG-1 Audio Layer III
The most widely used lossy audio format, found on nearly every phone, car stereo and music player.
WAV1991
Waveform Audio File Format
An uncompressed audio format that stores sound exactly as recorded.
FLAC2001
Free Lossless Audio Codec
An open lossless format that shrinks audio to roughly half its WAV size without losing any detail.
AAC1997
Advanced Audio Coding (ADTS stream)
The successor to MP3, giving better sound than MP3 at the same bitrate, stored here as a raw AAC stream.
M4A2001
MPEG-4 Audio
AAC audio inside an MP4 container, the format iTunes and Apple Music use for songs.
M4R2007
iPhone Ringtone
The AAC-based file format iPhone uses for ringtones and text tones.
OGG2000
Ogg Vorbis
A free, open lossy audio format that sounds better than MP3 at similar sizes.
OPUS2012
Opus Interactive Audio Codec
A modern open codec that gives the best quality of any lossy format at low bitrates.
WMA1999
Windows Media Audio
Microsoft's lossy audio format, once common on Windows PCs and portable players.
AIFF1988
Audio Interchange File Format
Apple's uncompressed audio format, the Mac equivalent of WAV.
AC31991
Dolby Digital
The Dolby Digital surround format used on DVDs, digital TV and many video files.
MP21993
MPEG-1 Audio Layer II
The older sibling of MP3, still used for digital radio, DVD and broadcast audio.
CAD formats (1)
Document formats (8)
PDF1993
Portable Document Format
The standard format for documents that must look the same on every screen and printer.
DOCX2007
Office Open XML Document
The current Microsoft Word document format, with full support for styles, tables and images.
DOC1997
Microsoft Word 97-2003 Document
The older binary Word format used before DOCX arrived in 2007.
ODT2005
OpenDocument Text
The open document standard used by LibreOffice, OpenOffice and many government bodies.
RTF1987
Rich Text Format
A simple cross-platform text format that keeps basic styling such as bold, fonts and tables.
TXT1970
Plain Text
Unformatted text with no fonts, images or layout.
HTML1993
HyperText Markup Language
The language of web pages, which can also hold a formatted document.
MD2004
Markdown
A lightweight plain-text writing format that turns into formatted text with simple symbols.
Ebook formats (2)
Font formats (4)
TTF1991
TrueType Font
The classic font format that works on Windows, Mac and Linux.
OTF1996
OpenType Font
A modern font format with advanced typography such as ligatures and alternate glyphs.
WOFF2009
Web Open Font Format
A compressed font format built for use on web pages.
WOFF22018
Web Open Font Format 2
The newest web font format, compressed with Brotli for the smallest download.
Image formats (26)
JPG1992
Joint Photographic Experts Group
The standard lossy photo format used by cameras, phones and almost every website.
PNG1996
Portable Network Graphics
A lossless format with full transparency, ideal for screenshots, logos and graphics.
WEBP2010
WebP
A modern format that gives smaller files than JPG and PNG, with transparency and animation.
AVIF2019
AV1 Image File Format
A next-generation format built on AV1 that beats WebP and JPG on file size.
HEIC2015
High Efficiency Image Container
The photo format iPhones use by default, built on HEVC compression.
GIF1987
Graphics Interchange Format
A classic 256-colour format best known for simple looping animations.
BMP1986
Windows Bitmap
An uncompressed Windows bitmap that stores every pixel without compression.
TIFF1986
Tagged Image File Format
A flexible high-quality format used in photography, scanning and print production.
ICO1985
Windows Icon
The icon container that holds several sizes of one image, used for Windows apps and website favicons.
SVG2001
Scalable Vector Graphics
An XML-based vector format that scales to any size without losing sharpness.
JPEG1992
Joint Photographic Experts Group
The full name of the JPG format: same lossy compression, longer file extension.
TIF1986
Tagged Image File Format
The three-letter extension for TIFF, with the same lossless print-quality image data.
HEIF2015
High Efficiency Image File Format
The container standard behind HEIC, with efficient compression for photos and sequences.
JXL2021
JPEG XL
A modern format designed to replace JPG and PNG, with lossless recompression of existing JPGs.
JP22000
JPEG 2000
A wavelet-based format used in medical imaging, digital cinema and archives.
TGA1984
Truevision Targa
A simple raster format with alpha channel, long used in game development and video work.
DDS1999
DirectDraw Surface
A texture format for DirectX games that can store mipmaps and GPU-compressed data.
PSD1990
Photoshop Document
Adobe Photoshop's layered project file.
EPS1987
Encapsulated PostScript
A PostScript-based format for print graphics and logos.
ICNS2001
Apple Icon Image
The icon container used by macOS apps, with several sizes up to 1024x1024 in one file.
EXR2003
OpenEXR
A high-dynamic-range format with floating-point colour, standard in film and VFX.
HDR1989
Radiance RGBE
The Radiance high-dynamic-range format, widely used for environment maps and lighting.
PPM1988
Portable Pixmap
A very simple uncompressed colour image format from the Netpbm family.
PGM1988
Portable Graymap
The Netpbm grayscale format: one brightness value per pixel, uncompressed.
PBM1988
Portable Bitmap
The Netpbm black-and-white format that stores one bit per pixel.
PNM1988
Portable Anymap
The umbrella name for the Netpbm family covering PBM, PGM and PPM images.
Presentation formats (3)
PPTX2007
Office Open XML Presentation
The current PowerPoint presentation format with slides, animations and media.
PPT1997
PowerPoint 97-2003 Presentation
The older binary PowerPoint format used before PPTX.
ODP2005
OpenDocument Presentation
The open presentation standard used by LibreOffice Impress and OpenOffice.
Spreadsheet formats (6)
XLSX2007
Office Open XML Spreadsheet
The current Excel workbook format with sheets, formulas, charts and formatting.
XLS1997
Excel 97-2003 Workbook
The older binary Excel format used before XLSX.
ODS2005
OpenDocument Spreadsheet
The open spreadsheet standard used by LibreOffice and OpenOffice.
CSV1972
Comma-Separated Values
A plain-text table where each row is a line and cells are separated by commas.
TSV1980
Tab-Separated Values
A plain-text table where cells are separated by tabs instead of commas.
JSON2001
JavaScript Object Notation
A text format for structured data that web apps and APIs use everywhere.
Vector formats (1)
Video formats (24)
MP42001
MPEG-4 Part 14
The most widely supported video container, usually carrying H.264 or H.265 video with AAC audio.
MOV1991
QuickTime File Format
Apple's QuickTime container, common on iPhones, Macs and in professional editing workflows.
MKV2002
Matroska Video
A free, open container that can hold unlimited video, audio and subtitle tracks in one file.
WEBM2010
WebM
An open web video format built around VP8, VP9 or AV1 video with Vorbis or Opus audio.
AVI1992
Audio Video Interleave
An older Microsoft container that is still found on legacy PCs, DVD players and old camcorders.
WMV1999
Windows Media Video
Microsoft's Windows Media video format, built for Windows Media Player and PowerPoint.
M4V2001
iTunes Video
Apple's MP4-style format used for iTunes and the Apple TV app.
FLV2002
Flash Video
The Flash Video container that once powered most online video before Flash was retired in 2020.
MPEG1993
MPEG Program Stream
The classic MPEG-1 and MPEG-2 video format used on Video CDs, DVDs and early digital TV.
MPG1993
MPEG Video
The three-letter extension of the MPEG-1 and MPEG-2 family, common on old camcorders and DVD rips.
3GP1999
3GPP Multimedia
A lightweight mobile video format created for early cell phones and slow connections.
TS1995
MPEG Transport Stream
The transport container used by digital TV broadcasts and as the segment format of HLS streaming.
MTS2006
AVCHD Video
The file extension that AVCHD camcorders from Sony, Panasonic and Canon use for recorded clips.
M2TS2006
Blu-ray BDAV Transport Stream
The stream format used inside Blu-ray discs and AVCHD folders for high-definition video.
VOB1996
DVD Video Object
The container that stores movie data on DVD-Video discs, normally MPEG-2 video with AC-3 audio.
OGV2004
Ogg Video
The Ogg container carrying open Theora video with Vorbis audio.
ASF1999
Advanced Systems Format
Microsoft's streaming container that sits underneath WMV and WMA files.
F4V2007
Flash MP4 Video
Adobe's MP4-based Flash video format that stores H.264 video with AAC audio.
RM1997
RealMedia
RealNetworks' streaming format from the dial-up internet era, played by RealPlayer.
RMVB2002
RealMedia Variable Bitrate
The variable-bitrate variant of RealMedia, popular for downloaded movies and anime in the 2000s.
DV1995
Digital Video (DV25)
The intraframe format recorded by MiniDV camcorders, fixed at 720x480 (NTSC) or 720x576 (PAL).
AMV2005
AMV Video
The tiny proprietary video format used by cheap MP3/MP4 players with small screens, typically 128x90 or 160x120.
Y4M2000
YUV4MPEG2
A raw, uncompressed video format without audio, used for codec testing and encoding pipelines.
MXF2004
Material Exchange Format
A professional broadcast container used by TV cameras, editing systems and playout servers.